Globe-guard.



Patented lune ll, I90l. A. LEPEL & F. SCHULTZE;

GLOBE GUARD.

(Application filed Mar. 14, 1899.)

3 Sheets-Sheet I.

(No Model.)

m: nonms PETERS co. inofou'mmwasnm m'cu, o. c

No. 676,33l. Pate ntedlune u, 19m.

A. LEPEL, & F. SCHULTZE.

GLOBE GUARD.

(Application med Mar. 14, 1899.)

' (N0.Model.) 3Sheets-Sheet 2.

/ Will/I104 m: uomus PETERS co. Pnorauma. wnsmuu'rcn. 11c;

No. 676,33l.

A. LEPEL & r. SCHULTZE.

Patented lune ll, I90l.

GLOBE GUARD.

(Application filed Mar. 14, 1899.)

3 Sheets-Sheet 3.

(No Model.)

, UNITED STATES PATENT OFFICE.

ALFRED LEPEL, OF BERLIN, AND FRITZ SCI-IULTZE, OF GRUNEWALD,

GERMANY.

GLOBE-GUARD.

SPECIFICATION forming part of Letters Patent No. 676,331, dated June 11, 1901.

Application filed March 14, 1899. Serial No. 709,034. (No model.)

To (ZZZ whom it may concern:

Be it known that we, ALFRED LEPEL, meohanical engineer, residing at Luiseh-Strasse 7, Berlin, and FRITZ SOHULTZE, architect, residing at Trabener-Strasse 2, Grunewald, near Berlin, in the German Empire, subjects of the German Emperor, have invented certain new and useful Improvements in Globe-Guards, of which thefollowing is a specification.

The spherical or nearly spherical globeguard illustrated in the accompanying drawings has the characteristic feature of opening below in order to obtain a better downward radiation of the light inclosed by it. However, this is not the only'practical purpose of the present globeguard, as its form also serves to satisfy demands which may be made from an esthetic point of view.

Figure 1 of the drawings representsin part sectional view the globe-guard arranged for a suspended lamp. Fig. 2 shows the globeguard opened below. Fig. 3 shows in section. and on a larger scale the connection of the lower half of the globe-guard with the upper half at y in Fig. 2. Fig. 3 is a detail horizontal section through two upper parts of the guard. Figs. 4 and 5 are detail views at right angles to each other. Fig. 6 shows the connection of a portion of the upper part of the globe-guard with the top band or ring. Fig. 7 shows a modification of Fig. 6, the upper half of the globe-guard being in its details turnable in sector form around the top. Fig. 8 shows the same form with the difference of the sectors being represented open. Fig. 9 shows the globe-guard modified for table lamps closed, and Fig. 10 shows the same opened. Fig. 11 is another modification, and Fig. 12 is a View of a sector seenin Figs. 9 and 10.

As shown in Figs. 1 and 2, the globe-guard consistsof several sectors, viz: six sectors a for the upper half and six sectors b for the lower half. It is not necessary, however, for the globe-guard to be composed exactly of twelve sectors, as it may instead be constructed of more. or less than twelve such parts, although to make it in twelve parts is the most suitable arrangement. The upper six sectors are held together at the top cZ by screws or bolts 0 through the adjacent flanges.

Fig. 6 shows a simple manner in which this maybeeifected. Thelowersixsectorsb,however--that is to say, each individual sectorturns on the lower edge of the corresponding upper sector a, as shown by Fig. 3. According to this the lower rim c of each upper sector a is provided with two oval holes 0, through each of which passes a short rod f, with a ball e at the upper end and a nut gat the lower end. By means of this nut g or a similar fastening device the upper rim 1) of the lower sector Z) is held. The ball 6 and the oval hole 0 (see also Fig. 3) enable the lower sector I) to take up a slanting position, as indicated by dotted lines, Fig. 3, with relation to the upper sector. At y in Fig. 2 this slanting position is shown. Two such ball -bearings are provided for every lower sector I). In order to cover the open part, an annular ledge his suitably arranged at the lower rim of the upper sectors and a covering-ledge at the lower sectors. On this ledge 70 weights 2' are provided, which serve to return the sectors to their original closed position.

As will be seen by comparing Figs. 1 and 2, the lower part of the globe-guard opens when the lamp is pulleddown by the ring Z. This is done in the following manner: The lamp is arranged, as usual, in a harp Z, which, as shown, terminates at Z in the gas-supply pipe m. When the harp carrying the lamp L is pulled down by the ring Z, a ring 19, secured to and aroundthe harp, meets the inner edges of the sectors 12 and presses the latter outward by gliding along on the inner edges of said'sectors. This continues until the ring 10 meets the lower rim 1" of the sectors b, as shown in Figs. 2, 4, and 5. Thus the sectors 6 have gradually opened and the light of the lamp freely radiates downward between the sectors. The ring 13 is fastened to the rods Z of the harp, and consequently goes up and down with the same. Now the lamp can be pulled down together with the opened globe-guard and said guard 'may-be opened or closed in any position of the lamp. According to this arrangement the lamp can only project as far out of the globe-guard as shown in Fig. 2. In some cases it is desirable, however, to let the lamp project farther and to use it entirely without the globe guard. For this purpose the ring 19 may be slightly recessed or indented opposite the sectors to allow the lower rims r of the sectors 1) to pass. Thus the lamp can be pulled down by itself without the guard; but in order to avoid the sector'scoming. together with their points 1" over the upper half of the globe these ends must be kept apart. This is done by the aid of a second ring g, which lies loosely on the lower ring 19, and is therefore not connected with the harp-rods Z. It will be easily seen by Fig. 5 that should the lamp, with the harp Z and attached ring 13, be pulled down below the points 1" of the sectors 1) the loose ring q will then place itself on r, and thus prevent the meeting of the lower sector ends. The said loose ring q is made sufficiently heavy soas to hold the sectors apart without any tendency to slide upward thereon. In pushing the lamp upward the rounded under sides of the points 9" of the sectors 1) will permitthe ring pto pass. In pushing the lamp stilljfarther up the loose ring q is taken up with the ringp and the sectors close, as shown in Fig. 1.

In a suspension-lamp the globe-guard is supported by means of any usual suspension devices'connected with the top d, as shown in' Fig. 1.

Figs. 7 and 8 show a modification in which the movement of the sectors takes place at the upper rim or flange of the upper sectors. In this case the upper and lower sectors are Of course firmly connected with each other where they meet at their flanged ends, so that the globe-guard only consists of six opening sectors. The support can be effected, as shown in Figs. '7 and 8, by means of balljoints in the same manner as in Fig. 3; but as the upper flanges of the sectors are somewhat narrow any other hinge-joint may be used. This arrangement can be used for ta-.

ble-lamps as well as for suspended lamps, but' of course with the difference that the globe-guard is to be moved up while the lamp remains in its place. In Figs. 9 and 10 this arrangement is shown in closed and open position, respectively. According to Fig. 9 the lamp L is surrounded by a spherical globeguard composed of wires. The lower half of this globe-guardis suitably constructed of six sectors of the form shown in Fig. 12 or the like arranged on a ring it, Figs. 10 and 11, connected with the upper half of the gIObe guard. As also shown in Fig. 12, every sector is composed of the two side wires .9 s,

the upper wire 5, and the lower wire 8. Between the upper wire s' and the lower wire .9 an-intermediate wire 8 may be arranged for bracing'the sector. The space between the wires is suitably covered with cloth. A wire b", with two knees t and 15, reaches from the upper wire 8 to the lower wire 8'. The ring 0 of the globe-guard, on which in ordinary lamps the globe is placed, also serves to carry gring p, in which case it serves as a rest. If the globe-guard is pushed higher, the lower part of the wire I), reaching from t to t, glides past .the ring 1) until another rest 75' places itself on the ring 29, resulting in the position indicated by Fig. 10. The ring p may be slightly notched or indented opposite the sectors.

If, therefore, the globe-guard is to be closed again, it is turned with its rests t on the ring 19 until each of the notches for the several sectors stands opposite to the wires I).

pulled down, so thatthe sectors close until the position'indicated by Fig. 9 is rearrived at. Fig. 11 shows a modification in which the upper half of the globeuard a remains'i 1 imediately under the lamp-burner proper.

This plate carries by means of some wires z the ring o, which, as'will at once be seen by Fig. 11, supports the whole arrangement quite independently from the lamp L.

What we claim as our invention is' 1. A spherical or nearly spherical globeguard, for lamps, comprising a number of sectors curved throughout their entire length and provided with inwardly-turned flanged ends, said sectors being suitably supported from above and adapted to automatically open outward at their lower ends, incombh nation with a fixed ring on the lamp;frame, and a loose. ring above said fixed ring, for guiding said sectors in opening and closing the globe-guard, substantially as described.

2. A globe-guard comprising a number of upper sectors and a number of lower sectors,- said upper and lower sectors beingsuitably connected to permit the lower sectors to open outward at their lower ends which are provided with inwardly-turned flanges, in combination with a fixed ring on the lamp-frame,

a loose ring above said fixed ring, and Weights on the lower sectors, substantially as described.

3. A globeguard comprising a top, and a number of jointed sectors adapted to open outward at their lower ends which are provided with inwardly-turned flanges, in combination with a ring on the lamp-frame to engage the inner edges of said sectors in opening the globe guard, and weights on said sectors to close said guard, substantially as described.

4:. A globe-guard comprising a number of jointed sectors adapted to open outward at Then the rests t loosethe'ir hold on the ring 19' and the globe-guard can be their lower ends which are provided with inour hands, in presence of two subscribing witwardly-turned flanges, weights on said secmesses, this 24th day of February, 1899. tors, and rests or kneest 25 carried by said sectors, in combination with a ring on the 5 lamp-frame to be engaged by said rests for J supporting the guard at diiferent heights, Witnesses:

substantially as described. HENRY HAsPER,

In testimony whereof we have hereunto set WOLDEMAR HAUPT.

i i I 

